While all of these points are great advice, I think it's important to check whether this is something deeper. In my experience with serious depression, advice

While all of these points are great advice, I think it's important to check whether this is something deeper. In my experience with serious depression, advice like this actually doesn't work, there was a period I was doing all of these things only to find it did nothing, which was disheartening to say the least. So by all means do this, but if things persist, speak to your doctor!